Shaggy cut pile fabric



Oct. 31, 1967 J. E. TROY 3,349,812

SHAGGY CUT P ILE FABRIC Filed Jan. 12, 1966 4 Sheets-Sheet 1 A} A5 Be A7B5 A9 E i0 Am Biz WEFTWSE INVENTOR.

BYW MM ATTORNEYS Oct. 31, 17967 J. E. TROY 3,349,812

SHAGGY CUT FILE FABRIC Filed Jan. 12, 1966 4 Sheets-Sheet 2 LIZ , H m a)1:7 1? 3 36 M, T A6, 67 E 6 ATTORNEYS Oct. 31, 1967 J. E. TROY 3,349,812

Y CUT P INVENTOR. JAMES E: TROY ATTORNEYS Oct. 31, 1967 J. E, TROY3,349,812

SHAGGY CUT FILE FABRIC Filed Jan. 12, 1966 1 4 Sheets-Sheet 4 Y c2 5INVENTOR.

1 JAMEs l'zTraoY wmapwase 57 p ATTORNEYS United States Patent 3,349,812SHAGGY CUT PILE FABRIC James E. Troy, Spray, N.C., assignor toFieldcrest Mills, Inc., Spray, N.C.,' a corporation of Delaware FiledJan. 12, 1966, Ser. No. 520,256 9 Claims. (Cl. 139-402) ABSTRACT OF THEDISCLOSURE A woven cut pile fabric having U-shaped short and abnormallylong cut pile tufts positioned in warpwise and weft-wise rows with theshort and long tufts being arranged in alternation in at least thewarpwise rows, and wherein the opposing legs of each of the respectivtufts are of substantially equal length.

This invention relates to a new and novel cut pile fabric and moreespecially to a woven shaggy cut pile fabric having abnormally long cutpile tufts.

Woven cut pile fabrics, including fabrics having cut pile tufts of twoor more different lengths looped beneath corresponding weft yarns, arewell known. To my knowledge, however, where U-shaped cut pile tufts havebeen provided on a pile fabric heretofore, the legs of abnormally longU-shaped tufts have not been of substantially equal length and arrangedin alternation with short U-shaped cut pile tufts also having legs ofsubstantially equal length.

It is therefore an object of this invention to provide a woven cut pilefabric, which fabric comprises a ground or base having U-shaped shortand abnormally long cut pile tufts looped beneath corresponding weftyarns and wherein the legs of each short tuft are of substantially equallength, and the legs of each long tuft are of substantially equallength, with the short and long tufts being positioned in warpwise andweftwise rows and the short and long tufts being arranged in alternationin at least the warpwise rows.

According to a preferred commercially practical method of the presentinvention, a loop pile fabric may be woven as a single-shot fabric withcertain loops being cut and resultant cut pile tufts being materiallyincreased in length by applying a robbing technique thereto. Thisrobbing technique enables the formation of abnormally long cut piletufts utilizing pile wires whose loop forming portions are ofsubstantially conventional height, so that no serious problems of pilewire rigidity or of maintaining the pile wires erect are presented. Inthe absence of the robbing technique of this invention, however,abnormally high loop forming portions would be required on the pilewires in order to form pile tufts of the lengths proposed according tothe instant invention. Since pile Wires are necessarily quite thin, suchabnormally high loop forming portions would be eX- tremely difiicult ifnot impossible to maintain erect and rigid under the tension of pileyarns looped thereover. Further, if a way could be devised to use pilewires having abnormally high loop forming portions, the fabricsresulting therefrom would not have the legs of the respective U-shapedcut pile tufts of equal length as in the instant invention. Also, sincethe fabric of this invention may be woven as a single-shot fabric, thispermits a substantially high rate of production as compared to the rateof production at which a comparable cut pile fabric may be produced whenwoven as a twoshort or multi-short fabric.

More specifically, the preferred method of forming the novel cut pilefabric comprises interweaving warp and 3,349,812 Patented Oct. 31, 1967weft yarns while a bank of pile yarns is shogged Weftwise in onedirection in a stepwise manner such as to loop the pile yarns beneatheach of a plurality of successive picks and over successive groups ofwarp yarns while forming loops therefrom over the groups of warp yarns.The direction of shogging the bank of pile yarns then is reversed whilethe pile yarns ar again looped beneath each of a plurality of additionalsuccessive picks and successively over the same groups of warp yarns tocomplete a shogging cycle. During the latter part of or subsequent toeach successive shogging cycle, the loops extending over alternategroups of warp yarns are severed to form short U-shaped cut pile tuftshaving legs of substantially equal length and also to form correspondingfree end pile yarn portions which are retracted from beneath certainpicks to form therefrom abnormally long U-shaped cut pile tufts havinglegs of substantially equal length.

Some of the objects of the invention having been stated, other objectswill appear as the description proceeds when taken in connection withthe accompanying drawings, in which:

FIGURE 1 is a schematic plan view of a preferred embodiment of the woven-cut pile fabric of the present invention showing progressive stages inthe production thereof;

FIGURE 2 is a view similar to the upper portion of FIGURE 1, but moreclosely resembling the actual fabric and also showing portions of pileformers or pile wires in association therewith wherein alternate pilewires are pro vided with loop severing means thereon;

FIGURE 2A is a plan view of a portion of the com: pleted fabric andcorresponding to the lower portion of FIGURE 1;

FIGURE 3 is a schematic perspective view of a portion of the fabricshowing a few warpwise rows of tufts in exploded spaced apartrelationship so as to better illustrate the manner in which the tuftsare formed, out and robbed over pile wires;

FIGURE 4 is a fragmentary elevation of a cooperating pair of pile wires,whose pile forming portions are of different-heights and wherein the lowpile wire is provided with a cutter for cutting and forming shortU-shaped cut pile tufts and the high pile wire is provided with tuftengaging surfaces of progressively increasing heights with respect tothe direction in which the fabric is woven or taken up during weavingfor robbing free end portions of the pile from adjacent the short cutpile tufts in the formation of corresponding abnormally long cut piletufts; FIGURE 5 is a schematic perspective view clearly illustrating thealternating arrangement of the short and abnormally long U-shaped cutpile tufts in warpwise and weftwise rows;

FIGURES 6 and 7 are fragmentary vertical sectionalviews through thefabric looking in the warpwise direction substantially along lines inFIGURE 2A; and

FIGURES 8 and 9 are fragmentary vertical sectional views through thefabric looking in the weftwise direction and taken substantially alongthe respective lines 8-8 and 9-9 inFIGURE 2A.

Referring more specifically to the drawings, and especially to FIGURES1, 2 and 2A, a preferred embodiment of the fabric of the presentinvention comprises a base or ground fabric 10 formed of interwoven warpand weft yarns. The warp yarns include closely spaced groups of warpyarns, the particular groups shown in FIGURE 1 being indicated at EVA-m.Warp yarn groups Vfl-EQ are shown in FIGURES 2 and 2A; The particularweft yarns shown in FIGURE 1 are indicated at E-QE. Pile 66 and 7'7,respectively,

yarns P 1 1f are also shown in FIGURE 1, all or any number of which mayconstitute a bank of pile yarns. Although each group of Warp yarnsE1-W12 includes a plurality of warp yarns, and each weft yarn I l-LE inFIGURE 1 may include a plurality of strands therein, the Warp and weftyarns are shown in FIGURE 1 in the form of respective narrow strips topresent a clearer representation of the pile yarns and the cut piletufts formed therefrom. However, the sections of the fabric shOWn inFIGURES 2, 2A, 6 and 7 clearly illustrate the warp yarns in each groupand also illustrate the several weft strands of each weft yarn.

In both FIGURES 1 and 2 the fabric is shown as it is being woven and asthe pile loops are being formed thereon and then cut and then raised torob or retract portions of the legs of abnormally long U-shaped cut piletufts from beneath certain of the weft yarns. The fabric of thisinvention may be woven on a suitably modified loom of a type as isdisclosed in Mosbergs U.S. Patent No. 2,860,664 and which ischaracterized 'by the fact that pile yarns are shogged laterally to andfro over warpwise extending pile formers resting upon a ground fabricbeing woven and wherein the pile yarns are dipped down- Wardly into theshed following each lateral shogging motion of the pile yarns so weftyarns are positioned over the pile yarns prior to corresponding beat-upsof the weft yarns against the fell.

As best shown in the upper portion of FIGURE 1, starting at the weftyarn E and reading upwardly in FIGURE 1, it will be noted that the pileyarns ELI-Q are shogged in one weftwise direction (to the right in thisinstance) in a stepwise manner to loop each pile yarn beneath each of aplurality of successive picks, such as picks or Weft yarns E, Llf andover successive groups of warp yarns while forming loops therefrom overthe corresponding groups of warp yarns, after which the direction ofshogging of the pile yarns is reversed to again loop the pile yarnsbeneath each of a plurality of additional successive picks, such as thepicks E, L Lj, and successively over the same groups of warp yarns Whileagain forming loops over the corresponding groups of Warp yarns tocomplete a shoggin g cycle.

More specifically, it will be noted that, taking a single pile yarn,such as pile yarn 12, for example, pile yarn P 3 is looped beneath weftyarn L11 between the warp yarn groups E, 1722, and then is shogged overwarp yarn group E and over a corresponding low pile former or wire, notshown in FIGURE 1 (see pile Wires in FIG- URES 2 and 4), to form araised relatively short loop from the pile yarn 9 over warp yarn groupB. Thereafter, pile yarn R3 is looped beneath weft yarn g2 and is thenshogged to the right in FIGURE 1 over warp yarn group B and over acorresponding relatively higher pile former or Wire, not shown in FIGURE1 (see pile wires 21 in FIGURES 2 and 4), to form another looptherefrom. Thereafter, pile yarn E3; is looped beneath weft yarn L 13and the direction in which the pile yarn is being shogged then isreversed; i.e., shogging of the pile yarns commences from right to leftin FIGURE 1. Thus, it can be seen that pile yarn E is then looped againover warp yarn group B and over a corresponding relatively high pilewire to form a loop therefrom. Thereafter, weft yarn L14 is insertedthrough the fabric and pile yarn 113 is looped beneath Weft yarn Q. Pileyarn P 3 is then shogged again from right to left in FIGURE 1 over warpyarn group B and the corresponding low pile wire to again form arelatively short raised loop above warp group 1V2, after which pile yarnE is looped beneath weft yarn LE to complete a shogging cycle of pileyarn P 3. All pile yarns P l-P 13 may be manipulated in unison over thecorresponding bank of pile wires 20', 21 in the manner described withrespect to pile yarn P 3.

Portions of a pair of pile wires especially constructed for weaving andforming cut pile tufts according to the present invention are shown inFIGURE 4 e ein a short-pile-tuft-former or pile wire is indicated at 20and a long-pile-tuft-former or pile wire is broadly designated at 21. Asshown in FIGURES 2 and 3, pile wires 20, 21 are arranged in alternationweftwise of the fabric being woven and extend warpwise over respectivegroups of warp yarns. It will be observed in FIGURES 3 and 4 that pilewires 20, 21 include respective loop forming and supporting sections 22,23, the loop forming section 22 preferably being of substantially lesserheight than loop forming section 23.

Both the pile wires, or at least the portions thereof illustrated inFIGURE 4, rest upon the ground fabric 10 during the weaving of thefabric and the relative positions of the pile wires 20, 21 aresubstantially as illustrated in FIGURES 3 and 4 wherein it will beobserved that the forward or left-hand portion of each pile Wire 20terminates a substantial distance short of the front end of each pileWire 21 and has an upwardly and forwardly angularly disposed cuttingblade 24 thereon which is located rearwardly of successive stages, stepsor shoulders 25, 26 formed on each long-tuft-forming pile wire 21. Thus,since the fabric moves from right to left relative to the pile Wires 20,21 in FIGURE 4, the loops, which are formed by a lateral shogging of thepile yarns in the manner heretofore described, are formed over the loopforming sections 22, 23 of piles wires 20, 21, and the low or shortloops formed over loop forming section 22 of pile wire 20 are severed bycutting blade 24 before at least the leading corresponding pile yarnsections or free end portions engage the first step 25 of the adjacenthigh tuft pile wire 21. As best shown in FIGURE 3, it will be noted thatthe legs of the high loops formed over pile forming section 23 of pilewire 21 are successively engaged and momentarily restrained by thetrailing edge of step 25, but as the fabric advances relative to thepile wire 21, this permits the trailing portion of the correspondinghigh pile loop to move into juxtaposition with the leading portionthereof, and thereafter, both the leading and trailing legs of thecorresponding long pile loop move upwardly onto step 25. In so doing,referring again to FIGURE 1 at Weft yarns pg, Q, m, as well as to FIGURE3, it will be observed that the free end portions of correspondingabnormally long cut pile tufts being formed are retracted from beneaththe portions of corresponding weft yarns positioned most closelyadjacent the group of yarns above which the corresponding pile yarnswere cut. More particularly, referring again to the pile yarn E in thecentral portion of FIGURE 1, it will be noted that, as the fabric movesdownwardly in this figure relative to corresponding pile wirestherebeneath, the pile wire 21 positioned above Warp yarn group E willhave its shoulder 25 (FIGURE 4) engaging the portion of the high tuft &extending over warp yarn group l3 adjacent opposite sides of weft yarnQ, and in so doing, it will retract the leading portion of thecorresponding abnormally long cut pile tuft A 3 from beneath weft yarnE. Also, the shoulder 25 on the corresponding pile Wire 21 will alsoplace the trailing free end portion of the pile yarn tuft g being formedof pile yarn P 3 and extending under weft yarn L1 0 under abnormaltension momentarily. Thereupon, the cutting blade 24 (FIGURE 4) on theadjacent pile wire 20 then positioned above warp yarn group IE willsever the pile yarn B; so that the trailing leg of the corresponding cutpile tuft E in FIGURE 1 will be at least partially retracted frombeneath weft yarn L12.

Since the fabric advances relatively slowly relative to the pile wires,there may be a relaxing of the free end portions of the tuft A loopedbeneath weft yarn L9, during which the free end portions further retractn51 beneath the corresponding weft yarns pg, I J1 0 Thereupon, both legsof the corresponding relatively long cut pile tuft E are engaged andraised above the corresponding warp yarn group it; of FIGURE 1 by thesecond step on the corresponding pile wire 21 to completely retract thefree end portions of the legs of the corresponding U-shaped tuft Agbeing formed from beneath weft yarns L8, L 1 0.

Now, it will be observed in FIGURE 4 that the front free end portion ofpile wire 21 has a very high projection 27 thereon which is providedwith an upwardly and forwardly inclined upper edge surface 30 thereonwhich extends upwardly from step 26. Thus, as the latter tuft A3 and anyother abnormally long cut pile tufts aligned weftwise thereof, areadvanced relative to pile wires 21, the two legs of each such abnormallylong U-shaped cut pile tuft whose central portions are then loopedbeneath weft yarn IQ, are then fully raised or distended by engagementthereof with the inclined surface 30 on the front end projections 27 ofthe corresponding pile wires 21. The abnormally long cut pile tuftsformed from respective pile yarns Ill-w are respectively designated atgal-A22 and the short pile tufts formed from the respective pile yarnsZZZ-IE are respectively designated at 12 1251, where applicable.

It is important to note that, by shogging and interlacing the pile yarnsin the manner shown in the upper portions of FIGURES 1 and 2, forexample, and then cutting the same and employing the robbing techniqueof retracting the legs of the abnormally long cut pile tufts l-lg frombeneath certain of the weft yarns in the manner heretofore described, sothat the central portions of the tufts remain looped beneath respectiveweft yarns, the legs of each short U-shaped tuft are of substantiallyequal length and the legs of each long U-shaped tuft are ofsubstantially equal length. In commercial practice, it has been notedthat occassionally one of the legs of a long cut pile tuft may beundesirably retracted more than the other; i.e., the loop of the tuftmay shift beneath a corresponding weft yarn, so one of the legs thereofmay project above the face of the pile, which condition may be rectifiedin subsequent processing. As particularly illustrated in the lowerportion of FIGURE 1 and in FIG- URES 2A, 3, 5, 8 and 9, it will be notedthat a warpwise row of tufts is formed between each adjacent pair ofgroups of warp yarns with the short and long U-shaped tufts beingarranged in alternation in the warpwise rows. The warpwise rows of shortand long tufts arranged in alternation also form weftwise rows of shortand long U-shaped tufts arranged in alternation and wherein the tufts inthe weftwise rows are looped beneath alternate weft yarns, such as theweft yarns E, IE, t}, etc. (FIG- URE 1) with the intervening weft yarns,such as pg, &, El, etc., being free or devoid of any cut pile tuftsbeing looped therebeneath. It is important to note that the fabric, asshown in the upper portion of FIGURE 1 and in FIGURE 2, may be woven asa one-shot or singleshot fabric, but that in severing the short looppile tufts, which are located at alternate groups of warp yarns, thefabric is converted into a two-shot fabric as shown in the lower portionof FIGURE 1 and in FIGURE 2A. As is Well known, a one-shot pile fabricis so constructed that a pile loop is formed of each pile yarn betweeneach adjacent pair of weft yarns or picks. On the other hand,

a two-shot fabric is characterized in that two picks or shots of weftyarns are inserted for every weftwise row of loop or cut pile tufts.

In order that the U-shaped pile tufts need not be made from undulylarge, and thus expensive, pile yarns and may still be spaced a suitabledistance apart from each other weftwise of the fabric so that thedistance between adjacent tufts weftwise of the fabric may conformsubstantially to the distance between adjacent legs of the tuftswarpwise of the fabric, while aiding in locking the tufts in the groundfabric 10, it will be observed in FIG- URES 2 and 6-9 that each warpyarn group Hlflllg may include five warp yarns and each weft yarn mayinclude four weft strands. In FIGURES 6 and 7, only the warp yarn groupsE-EQ are shown. However, it is to be understood that each warp yarngroup Ell-1V2 may 6 be similarly arranged. It will be observed inFIGURES 2, 6 and 7 that each group of warp yarns includes three chainwarp yarns Q, Q2,.Q and two stuffer warp yarns The stuffer warp yarns,which are substantially straight throughout the length of the fabricwhen the fabric is resting upon a flat surface, preferably are locatedbetween the corresponding chain warp yarns C 1, Q2, g in each warp yarngroup. As shown in FIGURES 8 and 9, each Weft yarn may include two upperstrands 35, 36 positioned in si-deby-side relation to each other andwhich extend above stuffer warp yarns S. Each weft yarn may also includetwo lower strands 37, 381 which extend beneath the stuffer .warp yarnsthroughout the width of the fabric in side-by-side relation to eachother so the stuffer yarns S extend in a substantially straight linethroughout the length of the fabric as opposed to extending over andunder the successive weft yarns. The chain -warp yarns G 1 Q2, Q 3 loopover and under and tightly engage successive weft yarns as shown inFIGURES 8 and 9.

In this connection, it will be noted that chain warp yarn Q ispositioned between the chain warp yarns Q1, Q5 (FIGURES 6 and 7) andthat wherever a chain warp yarn Q2 passes beneath a pair of weft strands37, 38 (FIGURES 8 and 9), the chain warp yarns Q, 9g pass over thecorresponding upper pair of weft strands 35, 36. It is also apparent byreferring to FIGURES 8 and 9 that chain warp yarns Q1, Q extend overalternate weft yarns and beneath intervening weft yarns between saidalternate weft yarns while the chain warp yarns Q extend beneath thealternate weft yarns and over the intervenin'g weft yarns, thusproviding a heavy tightly woven ground fabric which firmly locks thetufts therein.

Although the fabric of the present invention may be formed from pileyarns all of the same color, very pleasing aesthetic effects may beproduced by carefully choosing pile yarns of different colors and by acareful pattern arrangement of the different colors of pile yarns withrespect to each other. By utilizing pile yarns of more than twodifferent colors or shades as best shown in FIGURE 1, forexample, thesinuous manner in which the pile yarns are interwoven with the groundfabric 10, due to mul tiple-step shogging of the pile yarns over two ormore successive groups of ground warp yarns in the manner heretoforedescribed, presents a multi-colored random appearance to the fabric,although the three or more colors of pile yarns are arranged in apredetermined pattern sequence. As shown in FIGURE 1, three differentcolors of pile yarns are used, wherein every other pile yarn (termed asa first pile yarn) or alternate pile yarns, such as 1l2 E, E, etc., maybe white or of a'first color while alternately spaced second pile yarns,such as pile yarns IE, E, IE, etc., between alternately spaced pairs ofthe first pile yarns, may be of a second color or shade, such as blue,and the remaining or third pile yarns 2i, Iii), etc., betweenintervening pairs of the first pile yarns, may be of a third color, suchas green.

Since the short cut pile tufts of the instant fabric are considerablyshorter than the long cut pile tufts, they are substantially shieldedand hidden by the long tufts so that all the adjacent legs of tufts ofdifferent colors in adjacent warpwise and weftwise rows are randomlyinterspersed with respect to each other. For example, it will beobserved that the legs of the tufts which extend over the weft yarn L lin FIGURE 1, collectively provide a randomly variegated appearance tothe corresponding portion of the fabric, which appearance is presentover the entire pile surface of the fabric. More specifically, readingfrom left to right in FIGURE 1, the legs of the abnormally long cut piletufts which overlie weft yarn L 4 may be green, white, blue, white,green, white, blue, white, green, white, blue and white in that order.It is apparent therefore, that the arrangement of the three differentcolors of pile yarns in a predetermined pattern sequence substantiallyas shown in FIGURE 1 presents a very pleasing tnulti-colored randomappearance to the fabric. In this connection it is apparent that similarvariegated effects may be obtained by utilizing two or more pile yarnsof different shades or colors throughout the fabric or in selected areasinstead of single pile yarns P11 11 2- It is thus seen that I haveprovided a novel woven cut pile fabric in which U-shaped cut pile tuftsof short and abnormally long lengths are provided and wherein the legsof each short tuft are of substantially equal length and the legs ofeach long tuft are of substantially equal length with short and longtufts being positioned in warpwise and weftwise rows and arranged inalternation in both the warpwise and weftwise rows. The short tufts maybe very short; i.e., the short tufts may extend only a short distancefrom the ground fabric, with tuft lengths of about one-fourth inchhaving been found to be practical. Further, the legs of the abnormallylong cut pile tufts may be up to or greater than six times longer thanthe length of the legs of the short pile tufts when measured from theupper surface of the ground fabric, but in any event, the legs of thelong pile tufts should preferably extend more than one inch from theground fabric, with lengths of one and one-half inches to one andthreefourths inches having been found to present very desirable shaggyfabrics. The preferred ratio of the length of the legs of the short piletufts to the legs of the long pile tufts is about one to six with thelong pile tufts extending more than one inch from the ground fabric.

In the drawings and specification there has been set forth a preferredembodiment of the invention and, although specific terms are employed,they are used in a generic and descriptive sense only and not forpurposes of limitation, the scope of the invention being defined in theclaims.

I claim:

1. A woven cut pile fabric having interwoven warp and weft yarns forminga ground fabric and cut pile tufts of short and abnormally long lengths,said pile tufts being U-shaped and looped beneath corresponding weftyarns, with the legs of each short tuft being of substantially equallength and the legs of each long tuft being of substantially equallength, and said short and long U-shaped tufts being positioned inwarpwise and weftwise rows with the short and long tufts being arrangedin alternation in the warpwise rows.

2. A woven cut pile fabric according to claim 1, wherein the ratio ofthe length of the legs of the short pile tufts to the legs of the longpile tufts is about one to six, and wherein the long pile tufts extendmore than one inch from the ground fabric.

3. A woven cut pile fabric according to claim 1, wherein said short andlong tufts are also arranged in alternation in the weftwise rows.

4. A woven cut pile fabric according to claim 3, wherein the arrangementof said short and long tufts in alternation in said warpwise andweftwise rows is such that a short pile tuft is straddled by a pair oflong tufts both warpwise and weftwise to aid in shielding said shorttufts in the fabric.

5. A Woven cut pile fabric according to claim 1, wherein said warp yarnsare arranged in groups, with one of said groups of warp yarns beingpositioned between each adjacent pair of warpwise rows of tufts, andwherein each group of warp yarns includes chain warp yarns.

6. A woven cut pile fabric according to claim 1, wherein said warp yarnsare arranged in groups, with one of said groups of warp yarns beingpositioned between each adjacent pair of warpwise rows of tufts, andwherein each group of warp yarns includes chain warp yarns and stufierWarp yarns.

7. A woven cut pile fabric according to claim 1, in which said warpyarns are arranged in groups, with one of said groups being positionedbetween each adjacent pair of warpwise rows of tufts, and wherein eachgroup of warp yarns includes chain warp yarns and stuifer warp yarns,and said weft yarns beneath which said pile tufts are looped eachincludes at least two side-by-side weft strands.

8. A woven cut pile fabric according to claim 1, in which said warpyarns are arranged in groups, with one of said groups being positionedbetween each adjacent pair of warpwise rows of tufts, and wherein eachgroup of warp yarns includes chain warp yarns and stuffer warp yarns,and said weft yarns beneath which said pile tufts are looped eachincludes a set of weft strands comprising at least two side-by-sideupper weft strands and at least two side-by-side lower weft strands,said stuffer warp yarns extending beneath said upper weft strands andabove said lower weft strands, and said chain warp yarns extending overand beneath said set of weft strands.

9. A woven cut pile fabric according to claim 1, wherein saidcorresponding weft yarns beneath which said pile tufts are looped arearranged in alternation whereby adjacent weftwise rows of tufts areseparated by intervening weft yarns.

References Cited UNITED STATES PATENTS 2,808,072 10/1957 Stovall 1394032,860,669 11/1958 Moberg 139-420 2,868,231 1/1959 Robb 139-46 2,884,0204/1959 Karpoff 139-403 2,974,690 3/1961 Park et al. 13946 3,023,8844/1962 MacIsaac 139402 FOREIGN PATENTS 696,963 9/1953 Great Britain.

MERVIN STEIN, Primary Examiner.

H. S. JAUDON, Assistant Examiner.

UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No.3,349,812 October 31, 1967 James E. Troy It is hereby certified thaterror appears in the above numbered patent requiring correction and thatthe said Letters Patent should read as corrected below.

Column 1, line 13, for "weft-wise" read weftwise line 69, for"two-short" read two-shot line 70, for "multi-short" read multi-shotcolumn 3, line 19, for "Mosberg's" read Mobergs column 5, line 18, for"Al-A22" read Al-AlZ line 32, for "occassionally" read occasionallySigned and sealed this 3rd day of December 1968.

(SEAL) Attest:

EDWARD J. BRENNER Edward M. Fletcher, Jr.

Commissioner of Patents Attesting Officer

1. A WOVEN CUT PILE FABRIC HAVING INTERWOVEN WRAP AND WEFT YARNS FORMINGA GROUND FABRIC AND CUT PILES TUFTS OF SHORT AND ABNORMALLY LONGLENGTHS, SAID PILE TUFTS BEING U-SHAPED AND LOOPED BENEATH CORRESPONDINGWEFT YARNS, WITH THE LEGS OF EACH SHORT TUFT BEING OF SUBSTANTIALLYEQUAL LENGTH AND THE LEGS OF EACH LONG TUFT BEING OF SUBSTANTIALLY EQUALLENGTH, AND SAID SHORT AND LONG U-SHAPED TUFTS BEING POSITIONED INWARPWISE AND WEFTWISE ROWS WITH THE SHORT AND LONG TUFTS BEING ARRANGEDIN ALTERNATION IN THE WARPWISE ROWS.